# output.charset

- **Type:** `'ascii' | 'utf8'`
- **Default:** `'ascii'`

By default, Rsbuild's output is ASCII-only and will escape all non-ASCII characters.

If you want to output the original characters without using escape sequences, you can set `output.charset` to `utf8`.

```js
export default {
  output: {
    charset: 'utf8',
  },
};
```
